Nurling-machine



C. K.. MACDONALD.

NURLING MACHINE.

APPLxcATloN man orc. 9, 191e.

1,358,169.` Patented Nov. 9, 1920l E gl l 36 2 26 F1 g. l.

l l I Z0 CIK UNITED STATES PATENT OFFICE.

CLIFFORD KIRBY MACDONALD, OE BROCKTON, MASSACHUSETTS, ASSIGNOR, BY

MESNE ASSIGNMENTS, TO UNITED SHOE MACHINERY CORPORATION, 0F PAT- EBSON,NEW JERSEY, A. CORORATION OF NEW JERSEY.

NURLING-MACHINE To all whom t may concern:

Ec it known that I, CLIFFORD K. Mao- DONALD, a citizen of the UnitedStates, residing at Brockton, in the county of Plymouth and State ofMassachusetts, have invented certain Improvements in Nurling- Machines,of which the following description, in connection with the accompanyingdrawings, is a specification, like reference characters on the drawingsindicating like parts in the several gures.

This invention relatesto that type of niachine which operates upon thesoles of boots and shoes by impressing or indenting the surface of thesoles around their edges, usually to obliterate the marks made byinserting fastenings and to ornament the shoe sole. This class ofmachines is known to the trade as nurling -machines and as structuralcharacteristics, includes an indenting tool, a work edge gage in fixedrelation to the tool, and a work support, including a work engaging andsupporting arm or horn, the end of the arm engaging the insole of theinverted shoe at the outer edge of the shoe and acting as an abutmentagainst which the shoe is held while it is turned to presentsuccessiveportions of the bottom of the outsole to the action of the indentingtool, the edge of the sole at all times being maintained in Contact withthe'edge gage.

ris previously constructed or proposed, the work engaging arm or hornhas been inimovable laterally relatively to the fixed edge gage so thatthe distance between the work edge gege and the abutment edge of the armor horn end has been fixed. Under these conditions slices provided withextension solos or with sole edges projecting beyondl the sides of theshoe a greater distance than that between the edge and horn end, couldnot be properly positioned on the work support and in contact with theedge gage. A construction providing for relative lateral movementbetween the edge gage and work support to compensate for suchdifferences in the width of shoe soles, is` therefore a desideratum.

llt is also desirable to have means for varying the normal or minimumdistance between the edge and the end of the werk sup- Specification ofLetters Patent. Patntd NOV, 9, 1920 Application filed December 9, 1916.l

Serial No. 136,017.

porting arm, since this distance should vary to accommodate differentclasses of shoes. This will be readily apparent from the fact that mens,womens and childrens shoes vary in the distance from the inside of theshoe at one edge to the outer edge of the adjacent sole and the linearrelation between the edge gage Vandwork support must becorrespondingly'varied for the minimum distance for the various classesand types of work. And in order that accurate adjustment may be secured,it is furtherdesirable that a determinate line of lateral adjustingmovement `be uniformly maintained.

It is the aim of the present invention to provide a machine of thedescribed type embodying these various desirable features.

Accordingly, one feature of the invention comprises, in combination, anindenting tool, a cooperating work edge gage and a work supportpositioned in coperative relation with said gage and constructed torotate in response to the movement by the operative of a shoe thereon,to position itself in accordance with the shape of a shoe in itsdifferent lpositions thereon, and to yield under pressure of supportedwork in a direction laterally of and away from said edge gage. Theadvantages of such a construction have been previously stated, the selfadjusting movement of the work support in response to pressure of thework being obvious.

A further feature of the invention consists in a work engaging armpositioned in cooperative relation with a gage and supported to yieldlaterally relatively to and away from said gage, in a uniformlymaintained direction. The line of adjusting movement will always be thesame with reference to a fixed point on the gage, such for instance, asradially of a combine-d feed wheel and having a fixed axis of rotationasin the present case, and the spring opposing laterally outwardmovement of the work support can act uniformly to hold the edge of theshoe sole against the edge gage at all times since the movement of thework support may be confined to the direction of compression andexpansion of the spring.

Another feature of the invention consists in an arm having a workengaging end in cooperative relation with a gage and supported formovement relatively to and laterally of said gage, with means normallytending to move said armitoivard said gage and adjustment means tolimitsaid movement to adjust' when read in connection with the`raccoinpanying drawings, in Which- Y 7 Figure lis a vieiv in sideelevation oi a nui-lino' machine of the described ti ie embodying the'features present invention.

Fig. 2 fragmentary vertical vsection on an enlarged scale 'showing theConneco't the V tions between the Werl; supporting arm and itssupporting` standard, and

3io a detail in perspective oi' of the connecting elements.

The usual frame 2 oit this type of nurlingmachine is :torino-d with ahead in which the power shaft is journaled and 'frompwliich dependsareciprocable carrier il having' a suitable .nurlifng tool 5 at'itslower end. Eo pending` from the machine head 'and positioned in a planeslightly belenr the hurling tool is a power driven feed wheel 6. TheWork is supported by a standard. 8 having` suitable treadle connectionsi0 to litt it to operative position. lllhis standard isggiiided througha bracket l2 extendinglaterallyv i part i Jfrom the rameoif the machineand, adiacentY to its-enter end shouldered to provide a short reducedsection lll anda longer and further reduced section i6 terniin-ating`in.

a substantially spherical knob 18j Pieten ably, the bracket l2 carries aboss .22 having a sleeve extending,`V through the openV j the bracketand rigidlyV securing` the boos to the bracket. The boss is formed atits upper inner edge with a lateral offset 2d; slot-ted to Yprovide alateral guiding slot 26, Which er; n

tends in a direction substantiallyradial of the feeclwheel 6.

fin adjusting carrier is seated over tneup'- 'y rovidedivith a lateralbearinovtace' 32 and at a point below the -bearingface rwithdiametrically opposed lateral offsets 36 and dal. The interior of thesleeve 28 is of a diameter greater than the diameteror the section i6 ofthe standard andsubstantially coincident with the diameter oit' thesection 14e. This end internal diameter, however, at that portion of thesleeve in alinement with the offsets 36 and la is enlarged to atl'ordsubstantial clearancebetween the adjacent inner rface oit the tubularportion 28 and the 'periphery of section la of the standard.

rEhe carrier is permitted to roch on the spherical end of the supportingstandard, the amount of rocking` motion ano its direction beingdeterminatelly controlled. To this end, the oiiset 36 is bored toreceivcand guide a capped pressure member 38 Whose socket receives a coiledspring e0, the outer end of Which engages aftensioning nut l?, screwinginto the threaded enter ond oi tho offset.Y rlhe tension ot thespringforces the pressure member against the section lill in thestandard and tends to roel: the sleeve onV the spherical end ot thestandard to more its upper end toivardthe rear or' vthe niay. chine orin the direct-ion oithe leed wheel (i.

Vrlhis direction is controlled and is prei'erably made substantiallyradial to the iced Wheel by means of a finger d6 depending fromthelateral oi'set lil and guidedin the slot 26 'oiI the offset 24 or"Vthe boss. rl`he position of the carrier member on the standard isdetermined andthe rocking movement of the carrier on the standard may bevari- ,ably and determinatelylimited by the positiono the inner end oi ascreiv i8 carried by the otlsetv del for engagementiiith the section llof the standard at a point diametrically opposite the pressure ineinberrl`lie sci'eiiT dniay be loclred in ad iusted position by means oi asuitable lool: nut 50. j Y

ln'nurlingmachines of this class, the inverted shoe is car `ied upon anarm or horn positioned to canse the engagement ot theV sole of the shoe'with the feed Wheel and mounted orrotation, the insole Voli the shoeresting upon a dat portion 'or button at the :upper end oi the hornwhich is usually substantially in alineinent with the axis ot rotationoi' theV horn, the hornr beingtnrned about this axis as successiveportions oi' the edge or" the shoe are brought beneath theV hurlingtool. The lace ot the flattened i npper` end or button of the shoesupportingarm or horn is maintained. against the insole oie the `shoewith the edge oi the button engaging the side of the shoe as the shoe isturned both with and relatively tothe horn so'that suocessiveportionsoi' the sole edge are'held in Contact with the iieed Wheel 6 by thepressure of the edge of thev horn buttony against the inside edoe of theshoeivhile the iiurlino` tool is operating uponthebottoin ot "the soleladjacent to the feed Wheel and at a oint above the sun sorting' up eror but- ]3 i s i ton end of the horn.

rlhe distance between the periphery oi' the at the inside will vary withshoes with sole edges of different widths and with upper materials ofdifferent thicknesses, and the described construction of carrier memberis arranged to provide for the automatic accommodation of the positionof the upper end of the shoe supportinghorn to this vari-V abledistance.

A split sleeve 52 is journaled upon the carrier sleeve 28, its basehaving a bearing upon the bearing surface 32 of the carrier. A. splitbearing sleeve is preferable, since it is desirable to have such degreeof friction as willresist free turning of the horn, but will permit,nevertheless, rotation of the horn about the axis of standard 8 to adaptthe position of the horn to the shape of the inside of the shoe in thedifferent positions to which it is moved by the operative. Accordingly,the sleeve may be provided with alined offset ears 54 to receivesuitable clamping devices. The sleeve 52 is provided at its outer sidewith a laterally offset socket portion 56 in which the lower end 58 of ahorn 60 is clamped, the horn curving upwardly and inwardly to positionthe flat button 62 at its upper'end in substantial alinement with thenurling tool 5 and with the axis of the standard 8.

When an inverted shoe is mounted upon the horn 60 with the outer edge ofits sole engaging the periphery of the feed wheel 6 and with the inneredge of the button 62 engaging the inside of the shoe at its outer edge,the spring 40 `of the carrier member will yieldingly hold the edge ofthe shoe in this position. Obviously, the screw i8 is 'adjusted' topermit the spring 38 to move the button inwardly toward the feed wheeland to a distance from the feed wheel which will represent the minimum'width of the soles of shoes of the type to be operated upon. When a shoeis mounted upon the horn, as described, therefore, the spring 38 willmaintain the edge of the `shoe sole against the feed wheel at all timesas the shoe is turned to present different successive portions of itsedge to the hurling tool. With shoes having sole edges of varying widthsor upper materials of varying thiol ness the carrier member spring willpermit the button 62 of the horn to be moved radially outward from thefeed wheel by the pressure ofthe feed wheel against the sole edge to,compensate for the greater width or thickness and will move the buttonend of the horn radially inward toward the feed w ieel for the lesserwidth or thickness so that the described construction affords a worksupport which automatically accommodates itself to the various describedconditions in operating upon the shoes. The direction of lateralmovement will be uniform is determined. by the augugw lar relation ofthe guiding slot 26 for the `projection 46 to the feed wheel and edgegage 6.

c Having thus described my invention what claim as new and desire tosecure by Let-` ters Patent of the United Sta-tes is l. A machine of theclass described having, in combination, a tool for operating upon thefaces of shoe soles, a cooperating sole edge gage substantially at rightangles to the plane of the operative face of the tool, and a worksupporting horn `formed Vand arranged to be capable of entering theklaterally away from the edge gage in response to pressure of the gageagainst the sole edge.

2. A machine of the class described hav ing, in combination a tool forVoperating upon the faces of shoe soles, a cooperating sole edge gagesubstantially at right angles to the plane of the operative face of the`tool a work su ortinOV Varm a standard upon which the arm is mountedmovable to position the face 0f the supported sole in cooperativerelation to the tool, and connections between said arm and standardeffective yieldingly to maintain the edge of the supported soleagainstsaid gage and to permit said arm to yield in a direction trans?V verselyof the tool and laterally away from the edge gage inV response' topressure of the gage against the sole edge.

8. A machine of the class described having, in combination, a tool foroperating upon the faces of shoeV soles, a cooperating sole edge gagesubstantially at right angles to the plane of the operative face of thetool, and a work support movable in response to the movement of the shoethereon by the operative to position different parts of the face of thesupported sole in cooperative relation to the tool and having meansyieldingly to maintain the edge of the supported sole against said gage,said means being arranged to permit the work support to yield in adirection transversely of the tool and laterally away from the edge gagein response to pressure of the gage against the sole edge, said worksupport being mounted to turn about an' anis to present successiveportions of a sole edge to said gage and successive portions of the soleto said toch Il. A machine of the class described having7 in combinationa tool for operating upon the ieaces ot shoe soles, a cooperating soleedge gage substantially at right angles Y to the plane of the operativeface oi tne tool9 a Work supporting arm7 standard upon which the arm ismounted movable to position the tace oi" the supported sole incooperative relation to the toohand connections bet-Ween said arm and`standard effective yieldingly to maintain the edge oit the supportedsole against said gage and yto permit said arm to yield in a directiontransversely of the tool and laterally aivay from the edge gage inresponse to pressure oit the gage against the sole edge, said arm beingmounted to turn relatively vto its supporting vstandard about an airisto present successive portions of a sole edge to the gage and successiveportions of the sole face to said tool. Y Y v i 5. A machine of theclass described having, in combination, a tool for operating upon thefaces of shoe soles, a cooperating -sole edge gage substantially atright angles to the plane ot' the operative face or' the tool, and aivorl support movable in re- .sponse to the movement of the shoe thereonby the operative to position diderent parts o' the lace ofthe supportedsole in coperative relation to the tool and having means to maintain thesupported sole edge lagainst said gage constructed and arranged topermitfthe ivorlr support to yield in a direction transversely oi" thetool, and laterally away from the edge gage ata unii'oiinV angle to theengaged face of said in response to the pressure of the against the soleedge;

6. A machine et the class described having, iii combination a tool ioioperating upon the faces oi shoe soles, a cooperating sole edge gagesubstantially at right angles tothe plane of the operative face, oi thetool, a Work supporting arm,` a standard upon which the arm is mountedmovable to 'position the face of the supported sole in Y cooperativerelation to the tool, and connections between said arm and standardeifective yieldingly to maintain the edge et the supported sole againstsaid gage and to permit saidarmV to yield in a direction f transverselyof the tool and laterally aivay trom the edge gage in response topressure 'of the gage against thejsole edge, with means to control anduniformly to maintain the direction oi said lateralniovement oit' thearm, said arm being mounted to turn relatively toits supporting standardabout an airis to present successive portions -oif the sole edge and'face to said and tool, respectively.

7. A machine of the class described having, in combination, a tool .toroperating upon the faces of shoe-soles, a cooperating sole edge gagesubstantially at right angles to the plane ofk the operative face of thetool, a Work supporting horn formed and arranged tovbe capable ofentering the fore-L part of a shoe and rotatably mounted so as toposition itself in accordance' with the shape and position of the insideot the part of the shoe adjacent to that portion of the edge of the soleWhich from-time to time may be brought into coperative relation to saidVgage and having means normally tending to move said support toward saidsole edge gage to maintain the sole edge in'V contact with the gage, andmeans adjust- -niovement oi' the shoe thereonby the operative, astandard, and connections betweenV the standard and said arm constructedand arranged Ynormally to position the upper end oil saiflaim indeterminate cooperative relation to said edge gage including a spring tohold the sole edge of a support- Y ed shoe in contact with said edgegage and arranged to permit said arm to yield to pressure againstsupported Work in avdirection laterally of and away from said edge lgage.

9. machine of the class described having, in combination, a tool foroperating upon the faces of shoe soles, a Work edge Y positioned indeterminate relation to said tool, an arm having an overhanging Worksupporting end positioned ,substantially in vertical alinement With saidtool constructed and arranged to position itself in accordance with theposition to which the shoe supported thereby may be moved bytheoperative andin coperative relation to said edge gage and supportedfor rotationy about an aXis substantially in vertical alinement Withsaid tool, and having means arranged lto permit yielding Inoveinent ofsaid arm laterally of and away Vfrom said gage through Alateral pressureagainst ivor z supported by said arm.

l0. A machine of the class describedliaving,in combination,' a tool forope'ating upon the itaces of slice soles, a Work edge gage positioned indeterminate relation to said tool, an arm arranged to adapt itself tothe shape Vof the inside oit the shoe in its diil'erent positions andhaving a flattened upper end positioned substantially inverticalali-nement with said. tool and constructed to engage the insole of aninverted shoe at the outer edge of the shoe, a standard, and connectionsbetween said standard and arm constructed to support said arm forrotation about an axis in substantially vertical alinenient with saidtool and constructed and arranged normally to position the upper end ofsaid arm in determinate cooperative relation to said gage, including aspring arranged to hold the sole edge of a supported shoe in Contactwith said gage and arranged topermit said arm to yield to pressureagainst supported work in a direction laterally of and away from saidedge gage.

l1. A machine of the class described having, in combination, a tool foroperating upon the faces of shoe soles, a work edge gage positioned indeterminate relation to said tool, and a work supporting horn formed andarranged to be capable of entering the forepart of a shoe, and rotatablymounted so as to position itself in accordance with the shape and.position of the inside of that part of the shoe which from time to timemay be brought into coperative relation to said gage, and positioned incooperative relation to said gage, and constructed to yield to pressureagainst supported work in a direction laterally of and away from saidgage, and provided with means to control and maintain the direction oflateral movement.

l2. A machine of the class described having, in combination, a tool foroperating upon the faces of shoe soles, a work edge gage positioned indeterminate relationto said tool, and a work support 1n cooperativerelation to said gage constructed and arranged so as to be capable ofentering the forepart-of a shoe and rotatably mounted to position itselfin accordance with the shape and position of the inside of that part ofthe slice which from timeto time may be brought into cooperativerelation to said gage, said work support also being mounted to yield ina determinate direction laterally of and away from said edge gage inresponse to pressure exerted by said edge gage against a supported shoe.

13. A machine of the class described having, in combination, a tool foroperating upon the faces of shoe soles, a work edge gage positioned indeterminate relation to the tool, an arm supported for rotation'inresponse to the movement of the shoe thereon by the operative and havinga work supporting upper end, a standard, and connections between saidstandard and arm constructed and arranged normally to position said endof the arm in determinate coperative relation to said edge gageincluding spring means to permit said arm to yield to pressure againstsupported work laterally relative to and away from said gage, with meansdeterminately to guide said arm in its lateral movement.

la. A machine of the class described having, in combination, a tool foroperating upon the faces of shoe soles, a work edge gage positionedindeterminate relation to the tool, and an arm supported for rotation inresponse to the movement ofthe shoe thereon by the operative and havinga worksupporting upper end positioned substantially in verticalalinement with said tool and in cooperative relation to said edge gageand supported for rotation about an axis in substantially verticalalinement with said tool, with means arranged to permit movement of saidarm through pressure against supported work laterally of and away fromsaid gage, and with guiding means to restrict lateral movement of saidarm to a determinate line.

l5. A machine of the class described having, in combination, a tool foroperating upon the faces of shoe soles, a work edge gage supported indeterminate relation to the tool, an arm having a work-engaging endpositioned in cooperative relation to said gage and supported formovement relatively to and laterally of said edge gage, means normallytending to move said arm toward said gage, and adjustment means to limitsaid movement to adjust the normal linear relation of said gage and thework-engaging end of said arm.

16. fr machine of the class described having, in combination, a tool foroperating upon trie faces of shoe soles, a work edge gage supported indeterminate relation to the tool, an arm having a work-engaging endpositioned in coperative relation to said gage and supported formovement relatively to and laterally of said gage, spring means normallytending to move said arm toward said gage and arranged to permitmovement of said arm laterally away from said gage through pressureagainst work supported on said arm, and adjustment means to limit springactuated movement of said arm toward the gage to adjust the normallinear relation of said gage and the work engaging end of the arm. Y

17. A machine of the class described having, in combination, a tool foroperating upon the faces of shoe soles, a work edge gage supported indeterminate relation thereto, an arm having a work supporting endpositioned substantially in vertical alinement with said tool and incooperative relation to said gage, and supported for rotation about anaXis substantially in vertical alinement with said tool and for lateralmovement relatively to said gage, means normally tending to move saidVarm laterally toward said gage andarranged to permit lateral movement ofsaid arm relatively to and away from said gage through pressure againstWork supported by s aid arm, and adjustable means to limit such lateralmovement toward the gage to vary the normal linear relation of the gageand the Work supporting end of the arm. i

18. ln a machine of the class described, a tool for operating upon thesoles of shoes,

l0 a gage situated adjacent thereto, a member extending into the shoeoperated upon to furnish a support against the action of the tool andConstructed and arranged to rotate in response to the movement of theshoe thereon by the operative, and means for foreing the supportyieldingly toward the gage.

In testimony Whereotl have igned my name to this speeoation.

CLIFFORD KIRBY MACDONALD.

